Method of making liquid containers and container so produced



y 19, 1931- J. L. NELYSON I 1,805,552

METHOD OF MAKING LIQUID CONTAINERS AND CONTAINER 'SO PRODUCED Filed Jan. 10. 1929 Patented May 193.1

UNITED S ATES;

' JAMES L. NELSON, on ST. rotrrsivirssounr, a se -6M0 o. meswnmmmm a 1 COMPANY, on ST. LOUIS, MISSOURIfA CORPORATION"F rssounr "y e 'ianrnonor MAKING LIQUID ooNrAINERs;nnnlconrnnnnlso rnonucnn Application fi lezl January 10,

This invention relates to the method of making a li'quid container andan object is to provide an improved method and means for obtaining an impervious joint betweena, cast member and adjacent portions of a jsheet metal tank forming the walls of a liquid container. I

Another object of the invention is to provide an improved impervious joint between a casting and theconnectededges of the sheet metalwall ofa liquid containerso that the joint will resist permanently the attacksof the liquids andsolutions contained'in the tank.

Other objects are to obtain all of the ad vantages resulting fromthe improved structure herein disclosed, reference being made to i the accompanying drawings wherein Fig. 1 is a sideelevation showinglthe cast-1 ing mounted in an opening in a sheet metal lower edge thereof beingshownl united with the sheet metal wall by myimproved joint.

Fig. 3 is a cross seotional'view on the lin 33 of Fig. 1.

' The invention'is shown embodied in apractical construction used in brine tanks in refrigerating apparatus wherein the cast bracket 1 is mounted in the opening formed by the removal of a portionof a sheet metal wall 2. A purpose 'oftheinvention is to ob-,

'After the casting has been appropriately formed with the grooves in the manner stated the walls of said grooves are tinned. The

marginal edges of the wall 2 around the opening in which the casting is to be placed are also tinned. Next, the casting is placed in positionin the opening in the sheet metal Wall. When the casting is in proper position "easy anse; 3

in an pening thei tinned vertical arginal portions offthe jsh'eet metal. wall at the Sides of 'the; opening therein are. seated within the vertical grooves 3"and thehorizontal tinned;

marginal portion 10f the sheet "ma a1" wall at thelower endot 'saidfopenin g is satedin the channel oa mp e 4, closefit between said parts beingprovided. v t TXVhenthe casting'is fitted in position in the 7 opening in the sheetjmetal wallthe marginalfedges'jof the sheet metaljpreferably; contact, v with; the bottom. walls 5 of the channelsor 'grIO'Qv s 3'and lsothaf'thereisclose contact v between thetinnedsurfaces of the wal'ls'of the channelsor grooves and thetinned surfaces 7 ofth ei marginal portions of the sheet metal Walljaround the, ope'ming in whichthe castin'g isilocated; "Andthis contact of tinned surfaces exists also between the edges of the j opening in the sheet metal wall and the botwall by my improved method to obtain an impervious joint. v V Fig. 2 is an end elevation of the casting, the

tomsof the channels or grooves 3 and 4.

It will be seen that when the casting is positioned in the opening in the sheet metal Wall in the manner stated the edges of the casting laterally from the channels or grooves 3 and 4 form shoulders 5 along the inner and outer sides of the sheet metal wall. The walls of the shoulders 5 intersect thesurfaces of the sheet metalwall and form therewith angular channels or grooves along the vertical side the casting. 1 All of theseangular, grooves are filled-with solder 6 which. by union with the 3 wall landwiththe shoulders 5 throughout the lengthot' said shoulders along the lower and both verticalsidesof the casting forms a tightjointr And, by cooperation with thetinned surfaces of the sheet metal wall and of the casting, this solderforms an impervious jolnt that willstrongly resist deterioration by thebrin'e solution contained in the tank.

By producing this improved joint'by the 1 method described'I am enabled to dispense with the use of packing and gaskets and also i am enabled to dispense withthe use of fastening elements" such as bolts or the like. Further,'I obtain a joint between the casting and the sheet metal wall of the tank that will resist deterioration-longer than any packing or gasket with which I am' familiar. The

- 80 edges and along the lower horizontal edge oi invention may be varied within equivalent limits without departure from the nature and principle thereof.

What I claim and desire to secure by Let- 5 ters Patent is I 1. A method of securing a casting in an opening in a sheet metal wall which consists in forming a groove in the edges ofthe casting, tinning'the walls of said groove and the,

10 marginal portions of the sheet metal wall around the opening in which the casting is to be mounted, then placing the casting in said opening with the marginal edges of the sheet metal wall around said opening confined 15 closely in said groove, and then applying along the edges of the castin at opposite sides of the sheet metal wall an against the surv faces of said wall continuous and impervious lines of solder.

m 2. A tank comprising a sheet metal Wall havin an opening therein provided with tinne surfaces alongthe marginal edges of said wall about said opening, a casting having grooves in its edges, the walls of which :6 grooves are tinned and which casting is located in said opening, and the marginal e edges of the sheet metal wall about said openi being received in said grooves, and solder uniting the edges of the casting with the sur- 80 faces of the sheet metal wall at the sides of said grooves on both sides of said wall.

JAMES L. NELSON. 

